elasticsearchHow do I index a JSON document in Elasticsearch?

In order to index a JSON document in Elasticsearch, you must first create an index, which is a logical namespace that points to one or more primary shards and can have zero or more replica shards. To create an index, you can use the PUT API. For example, the following command creates an index named "my_index":

PUT my_index

Once the index is created, you can index a JSON document into it by using the POST API. For example, the following command indexes a document with ID 1 into the index "my_index":

POST my_index/_doc/1
{
  "name": "John Doe",
  "age": 34
}

The following is the output of the above command:

{
  "_index": "my_index",
  "_type": "_doc",
  "_id": "1",
  "_version": 1,
  "result": "created",
  "_shards": {
    "total": 2,
    "successful": 1,
    "failed": 0
  },
  "_seq_no": 0,
  "_primary_term": 1
}

The parts of the code are:

• PUT my_index: creates an index named "my_index"
• POST my_index/_doc/1: indexes a document with ID 1 into the index "my_index"
• { "name": "John Doe", "age": 34 }: the JSON document to be indexed

Helpful links

• Index API
• JSON Data Types

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